Identification
Bright yellow clustered caps with decurrent gills — a vivid oyster relative. Wild in East Asia on elm and other hardwoods; cultivated worldwide.
Edibility
Edible; delicate, cooks quickly; aroma fades fast — cook fresh.
Research note
Unusually high in ergothioneine, an antioxidant amino acid; a 2025 Japanese human study examined effects on gut microbiome composition. Interesting, early-stage data.